Problem with hibernate entity and variable
newbeewan Jan 21, 2011 8:43 AMHi,
I encoutered a trouble with hibernate entity stored into a process variable in jbpm 4.4...
I've got every time a lazy loading error for any property of a very simple entity :
@Entity @Table(name = "DAY_OFF_TYPE") public class DayOffType extends AbstractEntity { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "ID") private Long id; @Column(name = "KEY_LABEL", nullable = false) private String keyLabel; @Column(name = "PDF_TYPE", nullable = true) private String pdfType; @Column(name= "AVAILABILITY") @Enumerated(EnumType.STRING) private TypeOfAvailability availability; public void setAvailability(TypeOfAvailability availability) { this.availability = availability; } public TypeOfAvailability getAvailability() { return availability; } public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getKeyLabel() { return keyLabel; } public void setKeyLabel(String keyLabel) { this.keyLabel = keyLabel; } public String getPdfType() { return pdfType; } public void setPdfType(String pdfType) { this.pdfType = pdfType; } }
I load that entity from a DAO, put it in a process variable, and trying to acces to it during an other task, and I've got an Exception when I'm trying to access to any property :
[ERROR] org.hibernate.LazyInitializationException 42 - could not initialize proxy - no Session org.hibernate.LazyInitializationException: could not initialize proxy - no Session at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:167) at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:215) at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190) at mypackage.data.DayOffType_$$_javassist_13.getId(DayOffType_$$_javassist_13.java) at mypackage.process.vacancy.VacancyProcessTest.testProcess(VacancyProcessTest.java:100)
Any idea to solve that issue ?
Regards